# Kotlin Programming Compiler vs Learn SwiftUI

The clearest difference is rating: Kotlin Programming Compiler at 4.6 against Learn SwiftUI's 4.0. Kotlin Programming Compiler also leads on review sentiment (63% vs 42%). Learn SwiftUI's advantage is ads (none vs shown) and update cadence (every 5 days vs every 2 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Kotlin Programming Compiler sells 1 one-off in-app purchase and Learn SwiftUI sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Kotlin Programming Compiler holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Learn SwiftUI has 214 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 63% of Kotlin Programming Compiler's written reviews are positive against 42% of Learn SwiftUI's.

Kotlin Programming Compiler ships an update every 2 months, Learn SwiftUI every 5 days. The most recent releases landed on August 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Kotlin Programming Compiler | Learn SwiftUI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/kotlin-programming-compiler/id1450611634/reviews)** | [4.0 (214 ratings)](https://appshunter.io/ios/app/learn-swiftui/id1467598599/reviews) |
| Number of ratings | 7 | **214** |
| Positive reviews | **62.5% of reviews** | 42.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 20 MB | 40 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ketan Appa](https://appshunter.io/developer/576435759) | [Happy Moose Apps](https://appshunter.io/developer/1356705255) |

## What reviewers say

### Kotlin Programming Compiler

[App page](https://appshunter.io/ios/app/kotlin-programming-compiler/id1450611634)

Write and execute Kotlin code directly on your mobile device. This app is designed for learning and testing code snippets with features like syntax highlighting and a custom keyboard. It allows you to compile, run, and share your Kotlin files.

**Highlights:** Compile and run Kotlin programs, View program output and errors, Custom keyboard for easy input, Advanced source code editor, Syntax highlighting and line numbers, Open, save, import, and share files

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade | $2.99 | one-time |


### Learn SwiftUI

[App page](https://appshunter.io/ios/app/learn-swiftui/id1467598599)

Learn to code with interactive mini-lessons and tutorials directly on your device. Practice writing Swift code with real-time feedback and guidance to accelerate your learning. Offers a comprehensive SwiftUI guide with search functionality for quick reference.

**Highlights:** Interactive mini-lessons, Real-time code checker, Step-by-step guidance, SwiftUI code examples, Searchable code snippets, Multiple SwiftUI courses

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Course 3 | $0.99 | one-time |
| Course 4 | $0.99 | one-time |
| Course 5 | $0.99 | one-time |
| Course 6 | $0.99 | one-time |
| Course 7 | $0.99 | one-time |
| Course 8 | $0.99 | one-time |
| Unlock All Courses | $1.99 | one-time |

**What reviewers like**

- 👍 User-friendly and intuitive interface
- 🎓 Effective learning tool for SwiftUI basics
- 🆓 Free content available with no ads
- 📱 Convenient on-the-go learning
- ✨ Clean and colorful UI design

**What reviewers complain about**

- 🐛 Frequent crashes and black screen issues
- ❌ App incompatible with iOS 18 and newer versions
- 💰 Aggressive paywall and in-app purchases
- 📝 Poor documentation and unclear instructions
- 🔤 Numerous spelling and grammar errors

**Reported bugs**

- Black screen on app launch
- Crashes when selecting lessons or courses
- Crashes every 30 seconds after purchase
- Run button masked by UI elements
- Incorrect code validation accepting wrong answers

**Requested features**

- Visual output display of executed code
- More advanced topics (State, Binding, Environment, ObservableObject)
- Code snippet export to Swift Playground or documents
- Better explanations and documentation of concepts
- Submit button before code evaluation


## Frequently asked questions

### Is Kotlin Programming Compiler free?

Kotlin Programming Compiler is free to download, with in-app purchases available.

### Is Learn SwiftUI free?

Learn SwiftUI is free to download, with in-app purchases available.

### Which has better reviews, Kotlin Programming Compiler or Learn SwiftUI?

Kotlin Programming Compiler is rated higher. Kotlin Programming Compiler averages 4.6 out of 5 from 7 ratings, while Learn SwiftUI averages 4.0 from 214 ratings.

### Do Kotlin Programming Compiler or Learn SwiftUI have ads?

Kotlin Programming Compiler shows ads; Learn SwiftUI does not.

### Which is updated more often, Kotlin Programming Compiler or Learn SwiftUI?

Kotlin Programming Compiler ships an update every 2 months, and Learn SwiftUI every 5 days. Most recently, Kotlin Programming Compiler was updated on August 16, 2026 and Learn SwiftUI on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*